4 WILLIAM G. DIETZ, M. D. 



Both wings with veins all present. 



Vein 7 of forewing out of 8 Paraneura. 



Veins 7 and 8 of forewing out of 9 ; veins 3 and 4 stemmed. 



Setomorpha. 

 Forewing with 11 veins, 7 and 8 out of 9. 



Hiudwings with 8 free veins Epilegis. 



Hindwings with 7 veins; 5 and 6 stemmed. 



Veins 5 and 6 of forewings stemmed Apotomia. 



Veins 5 and 6 of forewings free- . . Semiota. 



Third joint of labial palpi with spreading bristly hairs; joints of hind tarsi 



with apical whirl of spinules. All veins present. 

 Third joint of labial palpi broad and very short, depressed ; veins 9 and 10 of 



forewings free Apreta. 



Third joint of labial palpi erect ; veins 9 and 10 of forewing long stemmed. 



Epichseta. 

 A 91 YD RI A Clem. 

 Dyar, List of North America Lepidoptera, p. 573. 

 Head rough-haired, scales of face partially rough to more or less 

 closely appressed. Maxillary palpi rudimentary. Tongue wanting. 

 Labial palpi strongly developed, curved, ascending, second joint 

 with a brush, more or less dense, beneath and generally with lateral 

 setae; third joint rarely as long as the second, either compressed 

 laterally or flattened. Eyes small, hemispherical, prominent. An- 

 tennae robust, scarcely more than one-half the wing length, joints 

 close set with verticillate scales. Forewings elliptic, apex more or 

 less rounded. All veins present, free, vein la furcate. Hindwings 

 as wide or wider than the forewings, oval, cilia under one half. All 

 veins present, free; vein 16 furcate at base. Posterior tibiae rough 

 haired. 



Moths of more than average size, with few exceptions. The type 

 of the genus is A. efrenatella Clem., and besides A. clemensella 

 Chambers, the only species heretofore described. The species now 

 known having considerably increased in number may conveniently 

 be arranged into three groups, as follows : 



Third joint of labial palpi compressed laterally. Head more coarsely rough 

 haired ; scales of face less closely appressed, giving the front when 

 viewed laterally a gibbous appearance. The head, viewed from 

 above is scarcely wider than long. Tho brush of the labial palpi 

 very dense and nearly perpendicle to the axis of the joint. .Gkoup I. 



Third joint of labial palpi flattened ; scales of face more or less closely appressed. 

 Species oehreous, as ochreous brown, rarely — onagrella — gray as grayish fus- 

 cous. Dorsal margin of forewings without markings, cilia generally 

 with dividing line, never barred; brush of first joint of labial palpi 

 feebly developed, lateral setee less evident Group II. 



